Respiratory system

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.HS-LS2-3

What is the main function of the respiratory system?

• gas exchange

• to bring oxygen to the body

• to break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

Breathing in is called:

• Inhalation

• Exhalation

Breathing out is called:

• Inhalation

• Exhalation

What is the site of gas exchange?

• alveoli

• nose

• lung

• bronchi

Where does the respiratory system start?

• Lungs

• Nose/mouth

• Bronchi

• Alveoli

The two main branches from the trachea (one to each lung)

• bronchi
• alveoli
• capillaries
• bronchioles

The main ORGAN responsible for breathing is:

• the Brain

• the Lungs

• the Liver

• the Kidneys

What is another name for the windpipe?

• Lungs
• Trachea
• Larynx
• Esophagus